diff --git a/modules/contrail/util.py b/modules/contrail/util.py
index 11d09bb190057725b706f59a21a99a13da4f2d4a..ab43a249ceef38fa0b35c3bb0bb5dd1f58fd9970 100644
--- a/modules/contrail/util.py
+++ b/modules/contrail/util.py
@@ -124,7 +124,7 @@ def extract(mask_image, image_ts, clavrx_path):
             levels_dict[press_level].append((press, lat, lon, temp_value, rh_value, horz_shear_value, static_value, horz_wind_spd_value, vert_shear_value))
             all_list.append((press_level, press, lat, lon, temp_value, rh_value, horz_shear_value, static_value, horz_wind_spd_value, vert_shear_value))
 
-    # Create pandas DataFrame for each list of tuples in voxel_dict
+    # Create pandas DataFrame for each list of tuples in levels_dict
     levels_dict_df = {}
     for k, v in levels_dict.items():
         print('pressure level, number of contrail points: ', k, len(v))